<template>
  <div class="site-wrapper site-page--login">
    <div class="site-content__wrapper">
      <div class="site-content">
        <div class="brand-info">
          <p class="brand-info__intro">欢迎使用Jfast 快速开发平台</p>
        </div>
        <div class="login-main">
          <h3 class="login-title">Jfast 快速开发平台管理员登录</h3>
          <el-form :model="form" :rules="rules" ref="form" @keyup.enter.native="doLogin()" status-icon>
            <el-form-item prop="userName">
              <el-input v-model="form.userName" placeholder="帐号"></el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input v-model="form.password" type="password" placeholder="密码"></el-input>
            </el-form-item>
            <el-form-item  prop="code">
              <el-row :gutter="20">
                <el-col :span="14">
                  <el-input v-model="form.code" placeholder="验证码">
                  </el-input>
                </el-col>
                <el-col :span="10" class="login-captcha">
                  <img :src="imgUrl" @click="changeCode()" title="换一张" alt="换一张">
                </el-col>
              </el-row>
            </el-form-item>
            <el-form-item>
              <el-button class="login-btn-submit" type="primary" @click="doLogin">登录</el-button>
            </el-form-item>
          </el-form>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
  export default {
    data () {
      return {
        imgUrl: this.$http.httpUrl('/image'),
       // errorCount: 0,
        form: {
          userName: '',
          password: ''
        },
        rules: {
          userName: [
              { required: true, message: '帐号不能为空', trigger: 'blur' }
          ],
          password: [
              { required: true, message: '密码不能为空', trigger: 'blur' }
          ],

          code: [
            { required: true, message: '请输入验证码', trigger: 'blur' }
          ]
        }
      }
    },

    created () {

    },

    methods: {

      changeCode () {
        this.imgUrl = this.imgUrl + '?' + new Date().getTime()
      },

      // 提交表单
      doLogin () {
        let that = this
        that.$refs['form'].validate(function (valid, rules) {
          if (valid) {
            that.axios.post(that.$http.httpUrl('/system/login'), that.form)
              .then(function (response) {
                if (response.data.code === 1) {
                  that.$message({
                    type: 'success',
                    message: response.data.message
                  })
                  sessionStorage.setItem('token', response.data.token)
                  sessionStorage.setItem('userInfo', JSON.stringify(response.data.userInfo))
                  sessionStorage.setItem('userPermission', JSON.stringify(response.data.userPermission))
                  setTimeout(function () {
                    location.href = '/#/home'
                  }, 2000)
                } else {
                  that.$message({
                    type: 'error',
                    message: response.data.message
                  })
                  that.changeCode()
                }
              })
          } else {
            var message = ''
            for (var rule in rules) {
              message = rules[rule][0].message
              if (message) {
                break
              }
            }
            that.$message({
              type: 'error',
              message: message
            })
            return false
          }
        })
      }
    }
  }
</script>

<style lang="scss">
  .site-wrapper.site-page--login {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(38, 50, 56, .6);
    overflow: hidden;
    &:before {
      position: fixed;
      top: 0;
      left: 0;
      z-index: -1;
      width: 100%;
      height: 100%;
      content: "";
      background-image: url(~@/assets/img/login_bg.jpg);
      background-size: cover;
    }
    .site-content__wrapper {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      padding: 0;
      margin: 0;
      overflow-x: hidden;
      overflow-y: auto;
      background-color: transparent;
    }
    .site-content {
      min-height: 100%;
      padding: 30px 500px 30px 30px;
    }
    .brand-info {
      margin: 220px 100px 0 90px;
      color: #fff;
    }
    .brand-info__text {
      margin:  0 0 22px 0;
      font-size: 48px;
      font-weight: 400;
      text-transform : uppercase;
    }
    .brand-info__intro {
      margin: 10px 0;
      font-size: 16px;
      line-height: 1.58;
      opacity: .6;
    }
    .login-main {
      position: absolute;
      top: 0;
      right: 0;
      padding: 150px 60px 180px;
      width: 470px;
      min-height: 100%;
      background-color: #fff;
    }
    .login-title {
      font-size: 16px;
    }
    .login-captcha {
      overflow: hidden;
      > img {
        width: 100%;
        cursor: pointer;
      }
    }
    .login-btn-submit {
      width: 100%;
      margin-top: 38px;
    }
  }
</style>
